This article is a combination of anecdotal evidence and medical research that identifies behaviors in the already affected population (that is, people with ED.) It's a plausible hypothesis but it's just that so far -- a hypothesis. This article sounds way too conclusive.

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The dopamine desensitization bit is one of the most cogent arguments for porn "addiction," and that article summarizes it well. They also neatly hew to calling it "dysfunction" rather than "addiction," which is probably wise as the argument over whether a biological drive (such as libido, hunger, and so on) can be stretched into addiction.

Regardless, the article seems to allow the inference to be made that internet porn use is an all-or-nothing thing. Cognitive behavioural therapists would be outraged at such a flagrant use of a cognitive distortion. After all, the research quoted suggests that it is the overuse of porn that is the problem.

Erotic words, pictures, and videos have been around a long while, but the Internet makes possible a never-ending stream of dopamine spikes. Today's users can force its release by watching porn in multiple windows, searching endlessly, fast-forwarding to the bits they find hottest, switching to live sex chat, viewing constant novelty, firing up their mirror neurons with video action and cam-2-cam, or escalating to extreme genres and anxiety-producing material. It's all free, easy to access, available within seconds, 24 hours a day, 7 days a week. Overstimulation of the reward circuitry in the brain is a very real possibility today.

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The suggestion being that it's gluttony, not porn use, that's problematic. I'd like to read some actual science, and not anecdotal (as Young Native aptly pointed out) evidence from, of all things, internet forums. (He writes, smiling at the irony of saying so in an internet forum.)